Update .travis.yml
Update .travis.yml
dmlc/xgboost,dmlc/xgboost,bssrdf/rabit,dmlc/rabit,dmlc/rabit,dmlc/xgboost,bssrdf/rabit,dmlc/xgboost,dmlc/xgboost,bssrdf/rabit,bssrdf/rabit,dmlc/rabit,dmlc/rabit,dmlc/xgboost,bssrdf/rabit